In Line Amplifier Tone Control 40db V-WGACLK and RCA connectors to inside

and RCA connectors to inside (premises) coaxial cable: Mini-coax

it's a pulling eye on one end and a smaller twisted eye on the other end for the tailing line allowing bi-directional use

77Gbps aggregate wireless throughput and 2x Gigabit Ethernet ports

The efficient NEC COI(4)-U10 ETU / CENTRAL OFFICE INTERFACE UNIT (Stock # 750150) is a Central Office Interface Unit that supports 4 outside (CO/PBX) lines

Device Supported :Network DeviceSwitchTransceiver

In Line Amplifier Tone Control 40db V-WGACLK and RCA connectors to insideIn Line Amplifier Tone Control 40db Clarity Inline Receiver Amplifier Increases Incoming Call Volume Up To 40db (increases Incoming Volume Up To 100 Times) Tone Selector For Maximum Speech Clarity (amplifies Selective Frequencies) Connects Between Handset And Phone Base Compatible With Most Home And Office Telephones With Modular Handset Cords Cannot Be Used With Telephones With Dialing Pads In The Handset Turns On Automatically When You Lift The